Emotions will be running high again when Liverpool FC head coach Jürgen Klopp meets former club Borussia Dortmund for the second leg of their UEFA Europa League quarter-final on Thursday.
bundesliga.com looks back at the the lovable tactician's memorable seven-year tenure at the BVB helm.
Recap: UCL and UEL quarter-final draws as they happened
2008/09 - Dortmund revitalised
2009/10 - A force to be reckoned with
2010/11 - Bundesliga champions
2011/12 - Double winners
2012/13 - Champions League finalists
2013/14 - Runners-up again
2014/15 - A season of two halves
An emotional farewell